This useless machine launches sand. That's all. It's bulky, it's useless, and it's time-consuming-- and that's EXACTLY the point! Probably the most precise and useless redstone machine I've ever built, this thing took ~3 days to build. Sorry about the bulk... I was too lazy to get rid of the unnecessary blocks. Thanks for looking at it :D

*EDIT* I guess I should probably tell you what it does in more detail. It launches sand on a predetermined course of slime blocks and redstone.  It can launch most blocks that are affected by gravity (Haven't tested with anvils-- I'd imagine they don't work). Where does it launch them exactly? About 7 blocks to your left. To quote myself, "Probably the most precise and useless redstone machine I've ever built".